Description : The experimental proof for semi-conservative replication of DNA was first shown in a (a) fungus (b) bacterium (c) plant (d) virus
Last Answer : (b) bacterium
Description : The experimental proof for semiconservative replication of DNA was first shown in a (1) Fungus (2) Bacterium (3) Plant (4) Virus
Last Answer : (2) Bacterium
Description : VAM is — a. Virus b. Bacteria c. Viroid d. Fungus
Last Answer : d. Fungus
Description : The final proof for DNA as the genetic material came from the experiments of : (1) Hershey and Chase (2) Avery, Mcleod and McCarty (3) Hargobind Khorana (4) Griffith
Last Answer : (1) Hershey and Chase
Description : Transfer of genetic information from one bacterium to another in the transduction process is through (a) bacteriophages released from the donor bacterial strain (b) another bacterium ... physical contact between donor and recipient strains (d) conjugation between opposite strain bacterium.
Last Answer : (a) bacteriophages released from the donor bacterial strain
Description : The antibiotic penicillin is obtained from which of the following? (1) synthetic process (2) a bacterium (3) fungus (4) virus infected cells
Last Answer : (3) fungus Explanation: Penicillins are a group of antibiotics used to treat a large range of bacterial infections. They are derived from Penicillium fungi and can be taken orally or via injection. Penicillin was discovered in 1928 by Scottish scientist Alexander Fleming.
Description : Polio is caused by - (1) Bacterium (2) Fungus (3) Virus (4) Insect
Last Answer : (3) Virus Explanation: Poliomyelitis , often called polio or infantile paralysis, is an acute, viral, infectious disease spread from person to person, primarily via the fecal-oral route.
Description : What causes mumps? A. Fungus B. Bacterium C. Deficiency of vitamins D. Virus (Answer)
Last Answer : D. Virus (Answer)
Description : The antibiotic penicillin is obtained from which of the following ? (1) synthetic process (2) a bacterium (3) fungus (4) virus infected cells
Last Answer : fungus
Description : Polio is caused by (1) Bacterium (2) Fungus (3) Virus (4) Insect
Last Answer : Virus
Description : Common cold differs from pneumonia in that (a) pneumonia is a communicable disease whereas the common cold is a nutritional deficiency disease (b) pneumonia can be prevented by a live attenuated ... infects alveoli whereas the common cold affects nose and respiratory passage but not the lungs.
Last Answer : (d) pneumonia pathogen infects alveoli whereas the common cold affects nose and respiratory passage but not the lungs.
Description : Outer covering of virus made up of protein is (a) Capsid (b) Coat (c) Virion (d) Viroid
Last Answer : Ans:(a)
Description : During the process of lysogeny _____. a. Phage DNA Integrates Into The Bacterial Chromosome. b. A Bacterium Acquires DNA From The External Environment. c. Competent Cells Receive Plasmids. d. New Phage Particles Are Assembled In The Host Bacterium.
Last Answer : a. Phage DNA Integrates Into The Bacterial Chromosome.
Description : Plant viroid contains —- • Only DNA • Only RNA • DNA or RNA • DNA and RNA
Last Answer : • Only RNA
Description : In genetic engineering, a DNA segment (gene) of interest, is transferred to the host cell through a vector. Consider the following four agents (i-iv) in this regard and select the correct option about which one or more of these ... ii) and (iv) (b) (i) only (c) (i) and (iii) (d) (ii) and (iv)
Last Answer : (d) (ii) and (iv)
Description : 1. Genetic material in bacterium is a single chromosome made up of circular and coiled _______.
Last Answer : Fill in the blanks. 1. Genetic material in bacterium is a single chromosome made ... cells are known as extrachromosomal selfreplicating DNA.
Description : Human immuno deficiency virus (HIV) has a protein coat and a genetic material which is (a) double stranded RNA (b) double stranded DNA (c) single stranded DNA (d) single stranded RNA
Last Answer : (d) single stranded RNA.
Description : What is the genetic material in influenza virus? (a) Double helical DNA (b) RNA (c) Single helix DNA (d) None of these
Last Answer : (b) RNA
Description : Which of the following is a form of trust that is built on the examination of the person’s motives and the conclusion that he or she is not hostile? Select one: a. Objective credibility b. Attribution of benevolence c. Non-manipulative trust d. Unequivocal liberality e. High cost of lying
Last Answer : b. Attribution of benevolence
Description : Under the electron microscope, you observe a cell with three different types of large organelles, each bounded by two membranes. The cell is most likely (a) A plant (b) An animal (c) A fungus (d) A bacterium
Description : Litmus is obtained from – (1) a bacterium (2) a fungus (3) an alga (4) lichen
Last Answer : (4) lichen Explanation: Litmus is a water-soluble mixture of different dyes extracted from lichens, especially Roccellatinctoria. It is often absorbed onto filter paper to produce one of the ... litmus paper is purple. Litmus can also be prepared as an aqueous solution that functions similarly
Description : Litmus is obtained from (1) a bacterium (2) a fungus (3) an alga (4) lichen
Last Answer : lichen
Description : Neurospora is used as genetic material because (a) It has short life cycle of 10 days (b) The product of single meiosis can be easily analysed (c) Meiotic products are linearly arranged in the form of ordered tetrads (d) Is a diploid fungus
Description : The hereditary material present in the bacterium E.coli is (a) single-stranded DNA (b) double-stranded DNA (c) DNA (d) RNA.
Last Answer : (b) double-stranded DNA
Description : The bacterium Deinococcus radiodurans has been of interest to molecular biologists because a. it has the smallest known bacterial genome. b. it is a "living fossil" linking the Bacteria and Archaea. c. it has the largest known bacterial genome. d. it is very resistant to radiation damage.
Last Answer : d. it is very resistant to radiation damage.
Description : Which statement is correct for bacterial transduction? (a) Transfer of some genes from one bacteria to another bacteria through virus. (b) Transfer of genes from one bacteria to another bacteria ... its DNA directly from mother cell. (d) Bacteria obtained DNA from other external source.
Last Answer : (a) Transfer of some genes from one bacteria to another bacteria through virus.
Last Answer : (a) Transfer of some genes from one bacteria to another bacteria through virus
Description : What is Viroid? -Biology
Last Answer : Viroid, an infectious particle smaller than any of the known viruses, an agent of certain plant diseases. The particle consists only of an extremely small circular RNA (ribonucleic acid) molecule, lacking the protein coat of a virus. ... Whether viroids occur in animal cells is still uncertain.
Description : Assertion : Agrobacterium tumefaciens is popular in genetic engineering because this bacterium is associated with the roots of all cereal and pulse cr
Last Answer : Assertion : Agrobacterium tumefaciens is popular in genetic engineering because this bacterium is ... both the assertion and reason are false
Description : A bacterium used in genetic engineering
Last Answer : Ans. E-coli (Agrobacterium rhizogenes)
Description : Two microbes found to be very useful in genetic engineering are (a) crown gall bacterium and Caenorhabditis elegans (b) Escherichia coli and Agrobacterium tumefaciens (c) Vibrio cholerae and a tailed bacteriophage (d) Diplococcus sp. and Pseudomonas sp
Last Answer : (b) Escherichia coli and Agrobacterium tumefaciens
Description : 3. Which bacterium is used in the production of insulin by genetic engineering? a. Saccharomyces b. Rhizobium c. Escherichia d. Mycobacterium
Last Answer : Ans: Escherichia
Description : What is the difference between a virus and a bacterium?
Last Answer : A: A virus is smaller and can only reproduce inside a living host, while a bacterium can reproduce on its own.
Last Answer : A: A virus is an infectious agent that consists of genetic material surrounded by a protein coat and requires a host cell to replicate, while a bacterium is a single-celled organism that can exist and reproduce independently.
Last Answer : A: A virus is a non-living particle that requires a host cell to reproduce, while a bacterium is a single-celled organism that can reproduce on its own. Bacteria are also much larger than viruses and have a more complex cellular structure.
Last Answer : A: A virus is a non-living, infectious particle that requires a host cell to replicate, while a bacterium is a living microorganism that can replicate on its own and can cause infection or disease.
Last Answer : A: A virus is a non-living particle that requires a host cell to replicate, while a bacterium is a living, single-celled organism.
Description : A virus infecting a bacterium is -Science
Last Answer : A VIRUS INFECTING A BACTERIUM IS CALLED BACTERIOPHAGES; OR PHAGES.
Description : The necrotic ring spot disease of stone fruits (cherry, peach, plum, etc.) is caused by (a) a bacterium (b) fungal infection (c) molybdenum deficiency (d) virus
Last Answer : Ans:(d)
Description : The smallest living cell is that of a (a) bacterium (b) bread mold (c) mycoplasma (d) virus
Last Answer : Ans:(c)
Description : The virus that infects a bacterium is (a) Arbovirus (b) Viremia (c) Bacteriophage (d) Baclofen
Description : Typhoid fever is caused by – (1) Bacterium (3) Fungi (2) Protozoa (4) Virus
Last Answer : (1) Bacterium
Description : 'ELISA' test is employed to diagnose - (1) Polio virus (2) AIDS antibodies (3) Tuberculosis bacterium (4) Cancer
Last Answer : (3) Tuberculosis bacterium Explanation: ELISA is an abbreviation for "enzymelinked immunosorbent assay." An ELISA test uses components of the immune system and chemicals to detect immune responses In the body (for example, to infectious microbes).
Description : Read the following four statements (A-D). (A) Colostrum is recommended for the new born because it is rich in antigens. (B) Chikungunya is caused by a Gram negative bacterium. (C) Tissue culture has proved useful ... . How many of the above statements are wrong? (a) Two (b) Three (c) Four (d) One
Last Answer : (B) Chikungunya is caused by a Gram negative bacterium.
Description : Common cold is not cured by antibiotics because it is (a) caused by a virus (b) caused by a Gram-positive bacterium (c) caused by a Gram-negative bacterium (d) not an infectious disease.
Last Answer : (b) caused by a Gram-positive bacterium
Description : Which among the following are Malicious Softwares: a) Virus and Worms b) Trojan Horse and Time Bomb c) Logic Bomb and Rabbit and Bacterium d) None of These e) All of the Above
Last Answer : e) All of the Above
Description : Typhoid fever is caused by (1) Bacterium (2) Protozoa (3) Fungi (4) Virus
Last Answer : Bacterium
Description : ‘ELISA’ test is employed to diagnose : (1) Polio virus (2) AIDS antibodies (3) Tuberculosis bacterium (4) Cancer
Last Answer : Tuberculosis bacterium